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Re: gEDA-user: PCB gerber export problem
I have had a similar problem when using gerbers made with PCB with Circuit CAM (this is the software package for LPKF mechanical etching machines). I found the polygon support to be a little flaky, but I also did not use polygons very much. I was only using 1 or 2 polygons per PCB and they were very simple (a rectangle). So take my limited testing with a grain of salt. I never did trace out where the error was, also the PCB polygon code has changed a lot from the last time I tried using Circuit CAM.
The error I was concerned with at the time involved Circuit CAM expecting a certain layer name or none at all. I did finally find an option in Circuit CAM to ignore layer names.
Matthew
KI4AJZ
On 1/10/07, Tomaz Solc <tomaz.solc@xxxxxxxxxx> wrote:
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Hi everyone
Yesterday I sent a layout I've made with PCB (exported to gerber) to our
faculty PCB fabrication department. Fortunately people there checked the
layout before actually starting the machine and warned me that it looks
a bit strange.
This is how a part of my layout looks like on their machine:
http://www.tablix.org/~avian/geda/pcb/gerber-problem/circuitcam.jpg
And this is how it looks on PCB:
http://www.tablix.org/~avian/geda/pcb/gerber-problem/pcb.png
You can see that clearance around pins and lines is missing in some
parts of the gerber output. Strangely, the same gerber files look OK in
"gerbv" viewer.
Does anyone have any ideas how to solve this problem? I think it's
highly unlikely that this would be a bug on their end.
I'm using PCB version 20060822. I also tried the latest CVS version but
that just introduced a lot more errors (clearances were all wrong and
some polygons don't show at all in the output)
Best regards
Tomaz
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